Home / 43,691.94-65,537.91-18,715.86

Finding the Fourth Proportional to 43,691.94, 65,537.91 and 18,715.86

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Solution

The fourth proportional to 43,691.94, 65,537.91 and 18,715.86 is: 28,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,691.94 : 65,537.91 = 18,715.86 : x
  2. Step 2: Convert to fraction form
    43,691.94/65,537.91 = 18,715.86/x
  3. Step 3: Cross multiply
    43,691.94x = 65,537.91 × 18,715.86
  4. Step 4: Simplify right side
    43,691.94x = 1,226,598,348.25
  5. Step 5: Solve for x
    x = 1,226,598,348.25/43,691.94
  6. Step 6: Final answer
    x = 28,073.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.